Walter a



NITED STATES PATENT OFFICE. I

\VALTER A. RO BINSON OF SYRACUSE, NEIV YORK.

WALL-PLASTER.

SPECIFICATION forming part of Letters Patent No. 465,205, dated December15, 1891'.

Application filed January 26, 1891. Serial No. 379,142; (l lospecimens.)

To all whom; it may concern:

Be it known that L'WALTER A. ROBINSON,

of Syracuse, in the county of Onondaga, in

the State of New York, have invented new and useful Improvements in\Va-ll-Plasters,

of which the following, taken in connection with the accompanyingdrawings, is a'full,

clear, and exact description My invention relates to wall-plasters.

My object is to produce a composition for 'alum, as set forth,

one-half peck; whiting, three peeks; p ulver- I ized alum, one pound;marl, one peck; and glue, two ounces. These are mixed together in a drycondition, and when I desire to use them they are mixed with sufficientquantities of water-t0 mix the compound plastic.

The above proportions may be changed or modified without departing fromthe spirit of my invention; but they are substantially true to allintents and purposes.

That I claim as my invention, and desire to secure by Letters Patent, is

The herein-described composition for wallplaster, consisting ofplaster-of-paris,sand,

quicklime, glue, whiting, and pulverized In witness whereof I havehereunto set my hand on this 19th day of January, 1891.

WALTER A. ROBINSON.

In presence of-- HOWARD P. DENIsoN, C. W. SMITH.

